You call BS on OP or the interviewer? Have you interviewed for a "unicorn" and other "cool" companies?
Sadly, looking for excuses to rationalised that the interviewer doesn't like you is still a thing.
Sadly, looking for excuses to rationalised that the interviewer doesn't like you is still a thing.
Edit: On the other hand, asking the question in a way that gets at the concept, not the term, seems very reasonable.
I don't think it's relevant, but yes, I have interviewed at such companies.